Combined binder-spring and picker-check.



0. E. HELD.

COMBINED BINDER SPRING AND PICKER CHECK.

APPLICATION FILED NOV. 29. 1912.

PatentedJuly 3, 1917.

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CHE$TER E. FIELD, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR T0 lVIILLABD F. FIELD,

0F WIN'IHBOP, MASSACHUSETTS.

' COMBINED BINDER-SPRING AND PICKER-CHECK.

Specification of Letters Patent.

Patented an a, 1917.

Application filed November 29, 1912. Serial No. 734,033.

To all whom it may concern.

Be it known that T, Cr nis'rnn E. FIELD, a citizen of the United States, and resident of lvlontreal, in theProvince of Quebec, Dominion of Canada, have invented an I1nprovement in Combined Binder-Springs and Picker-Checks, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The present invention is a combined binder spring and picker check in which the means for increasing the frictional resistance to the movement of the shuttle and picker stick consists of a yielding longitudinal member having a yielding swinging connection with thebinder body at about the mid.-

dle thereof, and preferably thence diverging rearwardly therefrom insuch a manner as to afford increasing leverage and resistance for the picker stick at the free end, the

binder also in some forms of the invention having means cooperating with said free end to afford increased binder resistance forthe body ofthe shuttle when said free end is depressed by the picker stick.

In the preferred construction, the binder spring is of wood andpreferably integral with the binder body at about the middle of the latter, said wooden spring being so shaped and yieldingly supported as to afford an increased and preferably sudden frictional resistance to the binder check at the limit of the latters movement.

In the drawings, in which several different embodiments of the invention are shown,

Figure 1 is a view of a shuttle box, partly in horizontal section, showing the preferred form of the binder and check in top plan,

parts being broken away for clearness of illustration Fig. 2 is a side elevation of the preferred form of the invention as shown in Fig. 1.

Referring first to Fig. 1 which contains the preferred form of the device. the binder body 1 is slitted lengthwise of the grain or provided with a saw kerf 2 back to about its the body at the point where it has its relative swinging or pivotal action. Secured to the outer surface of the binder is a suitable friction medium 6, preferably a strip of leather glued thereto. A coiled spring 7 is seated in a retaining hole 8 in the body against an adjusting screw 9 and held at its outer end in a recess 10 formed in the head or heavy end 4 ofthe wooden spring, and a similar coiled spring 11 is similarly mounted at one end in a recess 12 against an adjusting screw 13 in the body of the binder and retained in a recess or seat lelat its other end in the wooden spring. The coiled spring 11 is preferably just at the rearpf the intervening relatively slender or weak portion 15 of the binder spring 3 which is intermediate the two thicker end portions at and 5 of the the more readily yielding portion 15 of the binder spring. Thus the end a is instantly placed at such an angle that it affords the highest resistance to the picker stick as the latter is forced by the shuttle against said end 4-. The momentum of the picker stick and shuttle, however, compel the part L to yield, thereby compressing the coiled spring 7 (which is preferably more yielding than the coiled spring 11), and as this free end a is depressed to its dotted line position, Fig. 1, it turns on the spring 11 as a fulcrum and thereby suddenly throws the remaining portion of the binder spring outward as shown in dotted lines, so as to apply a sudden extreme pressure and frictional resistance against the shuttle. These various movements take place instantly and result in stopping the shuttle and picker stick easily and in the positions desired, and yet with the expenditure of a minimum of pressure and frictional resistance. By having the wooden binder spring 3 swing from about the middle of the binder body, I secure a degree of resiliency and spring resistance exactly commensurate to the needs of the shuttle and picker stick, and by having the extra spring resistance 7 and 11, the latter being'so positioned as to act as a fulcrum with relation to the slender or readily yielding part 15 of the binder spring proper, I secure the preliminary sudden increase of resistance required for the picker stick and then the following sudden increase of resistance of the part 8 required for the shuttle. 7

Having described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A binder having a forwardly extending kerf terminating about midway of its length and dividing said binder into a rigid outer body portion and a yielding inner binder spring, and yielding means for yieldingly supporting the free end of said binder spring to constitute a picker check, said binder spring, having a relatively weak portion back of said free end.

2. A binder having a forwardly extending kerf terminating about midway of its length and dividing said binder into a rigid outer body portion and a yielding inner binder spring having a relatively weak portion therein, and a spring fulcrum located inter-' mediate the length of said binder spring and between the binder spring and body portion.

3. A binder having a forwardly extending kerf terminating about midway of its length and dividing said binder into a rigid outer bodyportion and a yielding inner binder spring, and a spring fulcrum located intermediate the length of said binder spring and between the binder spring and body portion, said binder spring having a relatively weak portion between said fulcrum and the point of union of said binder spring with the body portion.

Copies of this 4:. A binder having a forwardly extending 5. A binder having a longitudinal kerf extending to about midway of the length of the binder and affording a wedge-shaped gap at its rear end, thereby dividing the binder into a rigid body portion and an inner binder'spring portion, the latter having an inner friction surface provided with a swell adjacent the end where said spring portion joins the body portion and asecond swelled and enlarged part at its free end with an intermediate slender, more readily yielding portion, a coiled spring adjustably mounted in the rear end of the binder body for yieldingly supporting the rear end' of said second swelled and enlarged part of the binder spring, and a coiled spring adjustably mounted in the binder body in position to support the forward end of said second swelled and enlarged part, thereby to constitute a fulcrum for said last mentioned part in connection with said intermediate slender more readily yielding por- In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

CHESTER E. FIELD.

Witnesses:

' R. H. TEARE, Lon IV. Oox.

patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

